D defs.my
Entry 1 sense Webster, 1913

Solely

/sō'-əl-ē/ · Sole·ly · IPA /ˈsoʊl.li/
01 adv. Singly; alone; only; without another; as, to rest a cause solely one argument; to rely solelyn one's own strength.
  1. 1.
    Singly; alone; only; without another; as, to rest a cause solely one argument; to rely solelyn one's own strength.